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Add 1/5 and 21/40

1/5 + 21/40 is 29/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 40 is 40
  2. For the 1st fraction, since 5 × 8 = 40,
    1/5 = 1 × 8/5 × 8 = 8/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    21/40 = 21 × 1/40 × 1 = 21/40
  4. Add the two fractions:
    8/40 + 21/40 = 8 + 21/40 = 29/40
  5. So, 1/5 + 21/40 = 29/40

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